[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain "Archaea" Woese et al. 1990 Phylum "Crenarchaeota" Garrity and Holt 2001 Class Thermoprotei Reysenbach 2002 Order Desulfurococcales Huber and Stetter 2002 Family Desulfurococcaceae Zillig and Stetter 1983 Genus Thermosphaera Huber et al. 1998 1 Thermosphaera aggregans Huber et al. 1998